| A | B |
|---|
| interference | The interaction between two waves that meet |
| constructive interference | When two waves combie to make a wave with a larger amplitude |
| destructive interference | When waves combine to produce a smaller or zero-amplitude wave |
| wave | A disturbance that transfers energy from place to place |
| trough | The lowest point of a transverse wave |
| crest | The highest point of a transverse wave |
| wavelength | The distance between two corresponding parts of a wave |
| vibration | What happens to the medium to produce a wave |
| transverse wave | A wave that has crests and troughs |
| longitudinal wave | Wave that moves the particles of the medium parallel to the direction the wave is moving |
| formula for the speed of a wave | speed= wavelength x frequency |
| reflection | When a wave hits a surface through which it cannot pass and bounces back |
| diffraction | The bending of a wave around a barrier |
| refraction | The bending of waves due to a change in speed when they enter a different medium |
| surface wave | A wave that occurs at the surface of two mediums. Ex waves on a ponds and lakes |
| antinodes | The highest and lowest points on a standing wave |
| hertz | The unit frequency is measured by |
| medium | The material through which a wave travels through. |
| tsunami | An earthquake that occurs underwater that can cause a huge surface wave on the ocean |
| primary waves | Earthquake waves that are longitudinal and travel faster than other waves |
| secondary waves | Earthquake waves that are transverse waves and cannot travel through liquids. |
| seismic waves | Waves that are produced by earthquakes |
